초록 ▼

An integrated alarm and access control system includes an access control package, an intrusion detection package and an interface unit. A position sensor determines if a door is open or closed and an electrically activated locking device locks the door in its closed position. A supervisory circuit p

An integrated alarm and access control system includes an access control package, an intrusion detection package and an interface unit. A position sensor determines if a door is open or closed and an electrically activated locking device locks the door in its closed position. A supervisory circuit provides line security. A door position relay and a first timer prevent an alarm signal from the supervisory circuit if the door is open and the egress device is actuated for a time period. A door control relay activates locking devices and a second timer responds to the door control relay, the egress device and the door position relay to give a prealarm signal. Fail-safe and fail-secure circuits are included.

대표청구항 ▼

An integrated alarm and access control system for a building having at least one door, the system comprising in combination: an access control package; an intrusion detection package; an interface unit operatively connected to the access control package and the intrusion detection package; a positio

An integrated alarm and access control system for a building having at least one door, the system comprising in combination: an access control package; an intrusion detection package; an interface unit operatively connected to the access control package and the intrusion detection package; a position sensor connected to the interface unit for determining if the at least one door is opened or closed; and a locking device operatively connected to the interface unit for locking the at least one door in its closed position, whereby the interface unit can transmit status information from the position sensor to either the access control package or the intrusion detection package or both and can control the locking device responsive to the access control package.